EP0515878A2 - Reinigung von heissen Hochdruckgasen - Google Patents

Reinigung von heissen Hochdruckgasen Download PDF

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Publication number
EP0515878A2
EP0515878A2 EP92107696A EP92107696A EP0515878A2 EP 0515878 A2 EP0515878 A2 EP 0515878A2 EP 92107696 A EP92107696 A EP 92107696A EP 92107696 A EP92107696 A EP 92107696A EP 0515878 A2 EP0515878 A2 EP 0515878A2
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EP
European Patent Office
Prior art keywords
tubes
filtration unit
housing
walls
pressure vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92107696A
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English (en)
French (fr)
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EP0515878B1 (de
EP0515878A3 (en
Inventor
Folke ENGSTRÖM
Juhani Isaksson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amec Foster Wheeler Energia Oy
Original Assignee
Ahlstrom Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of EP0515878A2 publication Critical patent/EP0515878A2/de
Publication of EP0515878A3 publication Critical patent/EP0515878A3/en
Application granted granted Critical
Publication of EP0515878B1 publication Critical patent/EP0515878B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/16—Fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures, e.g. by the arrangement of the combustion chamber and its auxiliary systems inside a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2206/00—Fluidised bed combustion
    • F23C2206/10—Circulating fluidised bed
    • F23C2206/101—Entrained or fast fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/104—High temperature resistant (ceramic) type

Definitions

  • the present invention relates to cleaning of high temperature, high pressure gases in a pressurized fluidized bed combustor of gasifier system.
  • HTHP Ceramic Filters in pressure vessels for cleaning of hot exhaust gases. See, for example, commonly assigned U.S. Patent 4,869,207 and commonly assigned application Serial No. 07/574,550, now allowed.
  • the above identified patent and patent application are related to filtration housings with candle type or Asahi type porous ceramic filter tubes supported vertically by horizontal cooled or non-cooled support plates.
  • the size or the filtration housing is limited when using this type of arrangement, i.e., the diameter of the tubes cannot be increased beyond about 2 - 4 m.
  • the tubes are preferably also fixedly supported at both ends which can cause problems with the sealing of the tubes to the support plates. Temperature and expansion differentials may also cause difficulties.
  • the candle type filter housing units are built as refractory lined vessels, and the support plates are made of steel or castable refractories.
  • the size of the filter housing is presently limited by construction considerations, i.e., the practical limit for the diameter of a pressure vessel with candle type filters is about 2 -3 m. It is therefore not possible to scale up the filter unit and increase the filtration area simply by adding additional filters, as an increase in the number of filter tubes would require a scale up of the pressure vessel itself due to the increase of the required support plate area.
  • the filtration velocity is presently limited to about 10 cm/s.
  • the diameter of the filter housing is also restricted by construction factors to a max of 2 - 4 m. It is difficult to build large water cooled support plates having a diameter > 2 m, due to expansion of the refractory lined vessel and due to the required rigidity of the support plate.
  • Filtration housings themselves have been previously made with refractory lined, non-cooled walls. There may have been several reasons for not cooling the walls of the housings:
  • Filtration housings have also been made as separate pressurized vessels, with the inside of the housing insulated. The insulation, however, has had to be very thick, e.g., 300 mm or so. A water cooled filtration housing could not be pressurized, however, as a separate pressure vessel since it would not survive the high pressure.
  • the low filtration area per filter housing volume is also a drawback of the present HTHP filters.
  • the filter units are relatively small, corresponding to a max 40 megawatt (MW) power plant. Scale up of a power plant requires an increased number of filter housings or filter units, and consequently, for normal size power plants of 300 MW, at least 8 filter units are required. Utility power plants having a size range 100 - 500 MW will always need an increased number of filter units.
  • a vertical pressure vessel enclosing an HTHP ceramic filter unit including a filtration housing having water or steam cooled walls and a plurality of horizontal candle type, porous ceramic filter tubes arranged horizontally within the filtration housing, the filters being primarily supported at their open ends by openings in at least one of the water or steam cooled walls of the filtration housing.
  • the pressure vessel also encloses a fluidized bed reactor, which may be a combustor, gasifier or some other reactor producing hot exhaust gases.
  • the fluidized bed reactor may have a fast or circulating fluidized bed (CFB), or a slow or bubbling fluidized bed.
  • a CFB reactor also includes a first particle separator for separating the circulating bed particles entrained by the exhaust gases and discharged from the upper part of the reactor chamber, and a return duct for recirculating the separated bed particles to the lower part of the reactor chamber.
  • the reactor chamber, first particle separator and the HTHP ceramic filter are arranged adjacent each other in the pressure vessel, so as to make the system as compact as possible.
  • the walls of the filtration housing are preferably constructed as water tube walls or membrane walls, wherein adjacent tubes and fins are connected by welding to form a gastight enclosure.
  • the water walls are insulated inside and outside as described further herein.
  • the fins between adjacent tubes in the water wall in accordance with this invention are broader than in conventional set-ups. For example, each fin may extend 60-150 mm between tubes in order to facilitate connection of a filter tube which itself may have a diameter of about 30 to about 60 mm. With fins this broad, they must be insulated in order to prevent high temperature damage, or burn-out.
  • a gas inlet is provided preferably at the upper part of the filtration housing and the gas is arranged to flow downwards in the housing across and through a plurality of porous ceramic candle type filter tubes arranged horizontally in the housing.
  • the filter tubes are preferably fixedly supported at their open gas outlet ends in openings in one of the fin portions of the water or steam cooled walls, or by two or more such walls.
  • the annular gap between the filter tube and the opening in the water wall is sealed to prevent leakage of gas into the filtration housing from the surrounding pressure vessel.
  • the arrangement of the filter tubes within the filtration housing may be varied according to needs.
  • the tubes may have a horizontal orientation in vertical alignment; they may have a horizontal orientation with staggered vertical alignment (this arrangement conserves space); they may also have a horizontally inclined orientation so that particles are not as easily accumulated on the exterior surfaces of the filter tubes as they would otherwise be on substantially horizontal filter tubes.
  • vertical rows of horizontally oriented tubes permits vertical expansion of the unit without having to increase the diameter of either the filtration housing or the pressure vessel.
  • the closed ends of the filter tubes are preferably movably supported by an opposite wall of the filtration housing, or by elements protruding from the opposite wall.
  • the filter tubes may be supported by a cooled partition wall arranged in the filtration housing, while in still another embodiment, the filter tubes may also be arranged to provide support for each other.
  • the invention is not limited, however, to any specific support arrangement.
  • the gas outlets of the filter tubes are connected to a manifold chamber arranged adjacent the filtration housing. Dirty gas flowing into the filtration housing will flow downwardly across the filter tubes, with gas entering the filter tubes and particles separated by the filter tubes falling to a particle outlet in the lower portion of the housing. Clean gas flowing from the filter tubes into the manifold chamber is preferably discharged through a common outlet from the pressure vessel, although two or more gas outlets may be used.
  • the present invention relates to apparatus for cleaning high temperature, high pressure gases comprising: a pressure vessel; a fluidized bed reactor including a reaction chamber supported within the pressure vessel, the reactor chamber having a gas outlet; and a filtration unit within the pressure vessel in proximity to the reactor, the filtration unit having an inlet connected to the gas outlet, the filtration unit having at least one clean gas outlet and at least one dirty particle outlet.
  • the present invention relates to apparatus for cleaning high temperature, high pressure gases comprising: a pressure vessel; a filtration unit within the pressure vessel, the filtration unit adapted to communicate with a fluidized bed reactor gas outlet; the filtration unit having at least one dirty gas chamber housing a plurality of substantially horizontally oriented porous, ceramic filter tubes, and at least one clean gas chamber for receiving clean gas from the ceramic filter tubes; wherein the dirty gas chamber includes a particle outlet and the clean gas chamber includes a clean gas outlet.
  • FIG. 1 there is illustrated one exemplary embodiment of the invention, including a pressure vessel 10 supporting therein a Pressurized Circulating Fluidized Bed combustor (PCFB) 12 with a hot solids circulating system.
  • the CFB combustor includes a reactor chamber 14, a cyclone particle separator 16 and a return duct 18.
  • carbonaceous material is combusted in the reactor chamber 14 with air introduced through a grid plate 20.
  • Particles entrained with the exhaust gases are separated in the cyclone separator 16 and returned to the lower part of the reactor chamber via duct 18 in order to keep a circulating mass of solid particles in the system.
  • the pressure in the pressure vessel 10 is kept above 5 bar, and preferably between 5 and about 20 bar, by introducing air into the pressure vessel 10 through a duct 22 from a compressor 24. Since the pressure drop across grid plate 20 is very small, the pressure in reactor chamber 14 and cyclone 16 is also between 5 and about 20 bar.
  • Hot, partly cleaned exhaust gases from the cyclone separator 16 flow through an inlet duct 26 into the HTHP filtration housing or filter unit 28, having water and/or steam cooled walls 30 and 32 insulated on both sides. As explained in greater detail below, the exhaust gases are cleaned in the HTHP unit and hot particles separated are drained through duct 34 to an outlet not shown in the drawing.
  • Particles separated from the gas by the filter tubes 36 flow downwards in the filtration housing 28 to the outlet duct 34, while clean gas from the filtration housing 28 is directed to the manifold chamber 40 and then introduced into the gas turbine 44 driving the compressor 44 and a generator 46. It will be appreciated that the gas will flow into the tubes 36 by reason of higher pressure in the filtration unit 28 and lower pressure in the manifold chamber 40, while the heavier particles separated by the tube filters 36 will simply fall to the bottom of the filtration housing to the outlet duct 34.
  • reverse pulse jets may be introduced into individual filter tubes 36 from the manifold 40 (or to the whole system) in order to clean the ceramic tubes, with particles removed from the surface of each filter tube during cleaning dropping to the outlet duct 34.
  • each filter tube 36 is supported in an opening 48 in the cooled wall 30, which, in turn, is formed by a series of water tubes 55 connected by fins 56.
  • tubes 36 may have diameters of from about 30 to about 60 mm, and fins 56 may have widths of from about 60 to about 150 mm.
  • the openings 48 are preferably made in the fins 56 as shown in Figure 2.
  • the wall 30 is insulated on the inside with a wear, abrasion and heat resistant, castable refractory lining 58, preferably with a thickness of about 70-200 mm, although a thickness of between 50-150 mm may be sufficient.
  • the lining 58 may be provided in the form of prefabricated plates fastened with the aid of, e.g., studs (not shown) extending through the fins 56 in the wall 30.
  • the outside of wall 30 is insulated with a lightweight insulation material 60, such as Koawool or other porous, lightweight fiber insulation, containing, e.g., Al-oxide fibers.
  • a lightweight insulation material 60 such as Koawool or other porous, lightweight fiber insulation, containing, e.g., Al-oxide fibers.
  • the outside of the wall 30 need not be as wear resistant as the inside since the gas on the outside (in chamber 40) is clean, and does not contain abrasive particles as does the inside (in housing 28).
  • the temperature in the water tube panel or wall 30 is relatively constant, and can be predicted and controlled during start ups and run downs, and this is advantageous when considering how the ceramic tubes 36 should be supported within the wall 30.
  • the outwardly flared open ends 38 of the tubes 36 are fixedly connected within the openings 48.
  • a gasket 62 is formed around the open or outlet end 38 by means of an annular bushing 64, a flat, steel ring 66 and one or more fasteners (e.g., bolts) 68.
  • the space inside the gasket, i.e., between the bushing 64 and flared outlet end 38 is filled with insulation material 70, which also extends between the filter tubes 36 and fins 56.
  • each filter tube 36 is movably supported by elements 50 connected to the opposite wall 32.
  • the closed end of each filter tube 36 should be permitted to move relative to its respective support 50 as a result of, e.g., changes in temperature, and is therefore not fixed to the support.
  • Other supporting arrangements may be employed, e.g., support elements having slots may be mounted to fins 56 into which fastening elements on the closed ends of the filter tubes can be fitted.
  • FIG 2A illustrates an alternative mounting arrangement for the tubes 36 within the water cooled wall 30.
  • the open end 38' of each tube 36' is fixed to the inside surface of wall 30' by annular bushing 64' via bolts 68'.
  • the interior bore 54' of the tube 36' opens to, or is aligned with, an opening 48' in the wall 30' which, in turn, is aligned with an opening 59 in the insulation 60' so that gas flowing into the tube 36' from the housing 28' will be directed to the chamber 40.
  • This arrangement permits filter tubes slightly shorter in length, so that the tubes can be assembled from within the filtration housing.
  • reactor 14 and separator 16 in the above described embodiment need not be located within the vessel 10 per se, but may be located outside the vessel with the inlet duct 26 connecting the separator to the filtration housing 28 inside the vessel 10.
  • FIG. 3 illustrates another exemplary embodiment of the invention, in which two sets 70, 71 of ceramic tubes are supported by outer, cooled walls 72, 74 of an enlarged filtration housing 76, with the closed ends of both sets of tubes supported loosely by supports 77 secured to a cooled partition wall 78.
  • the filtration housing 76 is effectively separated into two portions 80, 82, each having a respective manifold chamber 84, 86 leading to outlets 88, 90 for clean gas.
  • each housing portion 80, 82 has a particle outlet 92, 94, respectively, for carrying separated particles away from the unit.
  • outer walls 72, 74 and partition wall 78 may be constructed as tube/fin walls as in the earlier described embodiment, with similar mounting arrangements between the porous ceramic tubes and the respective walls.
  • the filtration housing 76 is mounted within a pressure vessel 96 (shown in phantom), and dirty gas is fed into the housing 76 through a single inlet 98.
  • This inlet may be connected to an outlet duct from a cyclone separator and reactor (similar to 16, 14 in the Figure 1 embodiment) mounted within the pressure vessel 96, i.e., located "behind" the housing 76, or it may be connected to a separator and reactor located outside the pressure vessel. Otherwise, the operation of the filtration housing is similar to the earlier described embodiment.
  • FIG. 4 illustrates a third embodiment of the invention wherein a pressure vessel 100 encloses a reactor 102 from which exhaust gases flow to a pair of cyclone separators 104, 106 which separately feed gas to a pair of adjacent filtration housings 108, 110, respectively.
  • the housings 108, 110 have filter tubes 112, 114, respectively, arranged in horizontal rows (a plurality of such horizontal rows are vertically aligned but not shown).
  • the filter tubes communicate with manifold chambers 116, 118 and are otherwise structurally and functionally similar to the above described embodiments.
  • FIG. 5 shows a fourth exemplary embodiment of the invention, in which a pressure vessel 120 encloses a filtration housing 122 in which the candle type filter tubes 124 are vertically aligned in a more compact configuration.
  • the tubes 124 are alternatively supported from opposite walls 126, 128 of the filtration housing 122.
  • the free or closed ends of each filter tube is supported by the fixed end of the tube directly underneath, via a support element 130.
  • a pair of separate clean gas chambers 132, 134 are formed on either side of the filtration housing, with clean gas outlets 136, 138 respectively. Particles separated from the gas fall to a single outlet 140 in the lower portion of the housing.
  • the unit shown in Figure 5 operates in a manner similar to the above described embodiments.
  • an associated reactor/separator may or may not be enclosed within the vessel 120.
  • the membrane wall can be formed of either vertical or spirally arranged tubes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Filtering Materials (AREA)
  • Treating Waste Gases (AREA)
  • Cyclones (AREA)
  • Cleaning In General (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Electrostatic Separation (AREA)
EP92107696A 1991-05-31 1992-05-07 Reinigung von heissen Hochdruckgasen Expired - Lifetime EP0515878B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/708,207 US5505906A (en) 1991-05-31 1991-05-31 Cleaning of high temperature high pressure (HTHP) gases
US708207 1991-05-31

Publications (3)

Publication Number Publication Date
EP0515878A2 true EP0515878A2 (de) 1992-12-02
EP0515878A3 EP0515878A3 (en) 1993-04-21
EP0515878B1 EP0515878B1 (de) 1996-10-16

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Application Number Title Priority Date Filing Date
EP92107696A Expired - Lifetime EP0515878B1 (de) 1991-05-31 1992-05-07 Reinigung von heissen Hochdruckgasen

Country Status (7)

Country Link
US (1) US5505906A (de)
EP (1) EP0515878B1 (de)
JP (1) JPH0736884B2 (de)
KR (1) KR960005757B1 (de)
AT (1) ATE144315T1 (de)
DE (1) DE69214510T2 (de)
ES (1) ES2095346T3 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0601587A1 (de) * 1992-12-09 1994-06-15 A. Ahlstrom Corporation Verbrennungs- oder Vergasungsanlage zur Anwendung in Drucksystemen
WO1995015814A1 (en) * 1993-12-10 1995-06-15 A. Ahlstrom Corporation Centrifugal separator in pressure vessel
WO1995024591A1 (de) * 1994-03-09 1995-09-14 Veag Vereinigte Energiewerke Ag Verfahren und anordnung zum betrieb einer druckaufgeladenen zirkulierenden mit braunkohle betriebenen wirbelschichtfeuerung für ein kombikraftwerk
DE4409055C2 (de) * 1994-03-11 2001-02-08 Ver Energiewerke Ag Verfahren zur Teilentschwefelung eines durch Verbrennen von Braunkohle erzeugten Heißgases, insbesondere für eine Gasturbine
WO2008046548A1 (de) * 2006-10-17 2008-04-24 Forschungszentrum Karlsruhe Gmbh Filtersystem mit abreinigungsvorrichtung
EP2937129A1 (de) * 2014-04-25 2015-10-28 Pall Corporation Verfahren zum Abscheiden von Partikeln aus einem Gas
EP2937130A1 (de) * 2014-04-25 2015-10-28 Pall Corporation Vorrichtung zum Abscheiden von Katalysatorpartikeln aus einem Gas
US9376931B2 (en) 2012-01-27 2016-06-28 General Electric Company Turbomachine passage cleaning system
CN111098386A (zh) * 2019-12-27 2020-05-05 肇庆学院 一种具有自清洁系统的三维打印机上料机构

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US5482537A (en) * 1994-05-18 1996-01-09 A. Ahlstrom Corporation Gas filtering apparatus
JP2003019412A (ja) * 2001-07-10 2003-01-21 Mitsui Eng & Shipbuild Co Ltd 集塵機
US20040100902A1 (en) * 2002-11-27 2004-05-27 Pannalal Vimalchand Gas treatment apparatus and method
FR2925369B1 (fr) * 2007-12-21 2011-11-11 Total France Procede pour le revetement anti-erosion d'une paroi, revetement anti-erosion et son utilisation.
US8876942B2 (en) * 2007-12-27 2014-11-04 Univation Technologies, Llc Systems and methods for removing entrained particulates from gas streams, and reactor systems
JP5008614B2 (ja) * 2008-07-02 2012-08-22 株式会社タクマ セラミックフィルターの取付構造
KR101585550B1 (ko) * 2013-12-11 2016-01-22 두산중공업 주식회사 가스화기 및 그것의 냉각 월 제조 방법
CN107131513A (zh) * 2017-05-03 2017-09-05 北京垣鸿锐科技有限公司 用于锅炉吹灰器的脉冲罐
FI127966B (en) * 2017-05-11 2019-06-14 Teknologian Tutkimuskeskus Vtt Oy Equipment and method for cleaning and operating the current
US11141741B2 (en) 2019-11-26 2021-10-12 Saudi Arabian Oil Company Hydrocyclone systems and methods for separating multi-phase compositions
US11014021B1 (en) * 2019-11-26 2021-05-25 Saudi Arabian Oil Company Systems and methods for separating multi-phase compositions

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EP0407730A2 (de) * 1989-07-11 1991-01-16 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Feuerung insbesondere Wirbelschichtfeuerung

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Publication number Priority date Publication date Assignee Title
FR884062A (fr) * 1942-03-03 1943-08-02 Appareil de traitement de gaz, notamment apte à les filtrer et se prêtant à leur conditionnement, en particulier pour gazogènes
US4468240A (en) * 1981-03-24 1984-08-28 Adolf Margraf Filtering separators having filter cleaning apparatus
DE3408627A1 (de) * 1984-03-09 1985-09-12 Deutsche Babcock Werke AG, 4200 Oberhausen Vorrichtung zum entstauben von heissen gasen
WO1989000660A1 (en) * 1987-07-13 1989-01-26 A. Ahlstrom Corporation Circulating fluidized bed reactor
EP0407730A2 (de) * 1989-07-11 1991-01-16 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Feuerung insbesondere Wirbelschichtfeuerung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0601587A1 (de) * 1992-12-09 1994-06-15 A. Ahlstrom Corporation Verbrennungs- oder Vergasungsanlage zur Anwendung in Drucksystemen
WO1995015814A1 (en) * 1993-12-10 1995-06-15 A. Ahlstrom Corporation Centrifugal separator in pressure vessel
WO1995024591A1 (de) * 1994-03-09 1995-09-14 Veag Vereinigte Energiewerke Ag Verfahren und anordnung zum betrieb einer druckaufgeladenen zirkulierenden mit braunkohle betriebenen wirbelschichtfeuerung für ein kombikraftwerk
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CN105148638A (zh) * 2014-04-25 2015-12-16 帕尔公司 用于从气体中去除夹带颗粒的方法
EP2937129A1 (de) * 2014-04-25 2015-10-28 Pall Corporation Verfahren zum Abscheiden von Partikeln aus einem Gas
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CN111098386A (zh) * 2019-12-27 2020-05-05 肇庆学院 一种具有自清洁系统的三维打印机上料机构

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EP0515878B1 (de) 1996-10-16
JPH0736884B2 (ja) 1995-04-26
ES2095346T3 (es) 1997-02-16
KR920021192A (ko) 1992-12-18
ATE144315T1 (de) 1996-11-15
DE69214510T2 (de) 1997-03-27
DE69214510D1 (de) 1996-11-21
JPH05261228A (ja) 1993-10-12
KR960005757B1 (ko) 1996-05-01
EP0515878A3 (en) 1993-04-21
US5505906A (en) 1996-04-09

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